Indonesian culture has been shaped by long interaction between original indigenous customs and multiple foreign influences. Indonesia is central along ancient trading routes between the Far East and the Middle East, resulting in many cultural practices being strongly influenced by a multitude of religions, including Hinduism, Buddhism, Confucianism and Islam, all strong in the major trading cities. The result is a complex cultural mixture very different from the original indigenous cultures.

Examples of cultural fusion include the fusion of Islam with Hindu in Javanese Abangan belief, the fusion of Hinduism, Buddhism and animism in Bodha, and the fusion of Hinduism and animism in Kaharingan; others could be cited.

Indonesian art-forms express this cultural mix. Wayang, traditional theater-performed puppet shows, were a medium in the spread of Hinduism and Islam amongst Javan villagers. Both Javanese and Balinese dances have stories about ancient Buddhist and Hindu kingdoms, while Islamic art forms and architecture are present in Sumatra, especially in the Minangkabau and Aceh regions. Traditional art, music and sport are combined in a martial art form called Pencak Silat.

Western culture has greatly influenced Indonesia in modern entertainment such as television shows, film and music, as well as political system and issues. India has notably influenced Indonesian songs and movies. A popular type of song is the Indian-rhythmical dangdut, which is often mixed with Arab and Malay folk music.

Indonesia is home to various styles of music, with those from the islands of Java, Sumatra and Bali being frequently recorded. The traditional music of central and East Java and Bali is the gamelan.

In 1966, a law was passed (Panpres 11/1965) banning Western-style pop or rock music. On June 29, 1965, Koes Plus, a leading Indonesian pop group in the 1960s, 70s and 80s, was imprisoned in Glodok, West Jakarta, for playing Western-style music. After the resignation of President Sukarno, the law was rescinded, and in the 1970s the Glodok prison was dismantled and replaced with a large shopping mall. The new mall in Glodok is now the centre of recording, production and distribution of modern Indonesian pop and rock music.

Kroncong is a musical genre that uses guitars and ukuleles as the main musical instruments. This genre had its roots in Portugal and was introduced by Portuguese traders in the fifteenth century. There is a traditional Keroncong Tugu music group in North Jakarta and other traditional Keroncong music groups in Maluku, with strong Portuguese influences. This music genre was popular in the first half of the twentieth century; a contemporary form of Kroncong is called Pop Kroncong. In addition, there are regional variations such as Langgam Jawa, which is most popular in Central Java and Yogyakarta.

The soft Sasando music from the province of East Nusa Tenggara in West Timor is completely different. Sasando uses an instrument made from a split leaf of the Lontar palm (Borassus flabellifer), which bears some resemblance to a harp.

Dance

There is a continuum in the traditional dances depicting episodes from the Ramayana and Mahabharata from India, ranging through Thailand, all the way to Bali. There is a marked difference, though, between the highly stylized dances of the courts of Yogyakarta and Surakarta and their popular variations. While the court dances are promoted and even performed internationally, the popular forms of dance art and drama must largely be discovered locally.

During the last few years, Saman from Nanggroe Aceh Darussalam has become rather popular and is often portrayed on TV.

Drama and theatre

The Javanese and Balinese shadow puppet theatre shows display several mythological events; and more. Randai is a folk theatre tradition of the Minangkabau people of West Sumatra, usually performed for traditional ceremonies and festivals. It incorporates music, singing, dance, drama and the silat martial art, with performances often based on semi-historical Minangkabau legends and Love Story.